baber/WOPTO huggingface dataset:
Patent GB-1033263-A (GB)
Title: Polymerising epoxides
IPC: C08G65/08
Filed: 1963-05-02
Abstract: Polymers are prepared by polymerizing an epoxy compound containing at least one oxirane group per molecule, or copolymerizing such an epoxy compound with another such epoxy compound or a non-heterocyclic polybasic acid or a non-heterocyclic ethylenically unsaturated compound as a comonomer, in the presence, as catalysts, of SbX3 where X is a halogen atom, -SR, -OR, -O2CR or R1, R is an unsubstituted or inertly substituted hydrocarbon radical and R1 is an alkyl or cycloaliphatic radical of less than 10 carbon atoms, and hydrogen peroxide or an organic peroxide. Specified epoxides are alkylene oxides, glycidol, oxyacrylic acid, epihalohydrins, butadiene mono- and dioxides, 2,3-diphenyloxirane, (alkyl) cyclohexene oxides, cyclohexadiene mono- and dioxides, vinyl-cyclohexene dioxide, 3,4-epoxy-6-methylcyclo-hexylmethyl 3,4 - epoxy - 6 - methylcyclo-hexanecarboxylate, 1,4 - dihydronaphthalene oxide, glycidyl esters of monocarboxylic acids, glycidyl polyethers of 2,2-bis-(p-hydroxyphenyl) propane, alkyl oxyacrylates and epoxidized soybean oil.  Various saturated and unsaturated aliphatic or aromatic polycarboxylic acid comonomers are specified whilst ethylenically unsaturated monomers specified are vinyl chloride and acetate, styrene, divinylbenzene, p-chlorostyrene, methyl methacrylate, ethyl or butyl acrylate, or tributyltin methacrylate. Many radicals X are specified whilst the compounds SbX3 specifically mentioned or exemplified ar antimony tri-(lauryl mercaptide); antimony S,S1,S11 - tris - (iso - octyl mercapto-acetate); tributyl antimonite; tris-(dichloropropyl) antimonite; trilauryl antimonite; antimony tris - (2 - ethylhexoate); antimony tallate; tributylstibine; tripropylstibine; triamylstibine and antimony trichloride. Organic peroxides specified are benzoyl peroxide, lauroyl peroxide, methyl ethyl ketone peroxide, cumene hydroperoxide, dibutylperoxide, peracetic acid, perbenzoic acid and t-butyl perbenzoate.  The polymerization may be a bulk or solution polymerization.ALSO:Polymerization catalysts are mixtures of a compound SbX3 where X is a halogen atom, -SR, -OR, -O2CR or R1, R1 is an unsubstituted or inertly substituted hydrocarbon radical and R1 is an alkyl or cycloaliphatic radical of less than 10 carbon atoms, and hydrogen peroxide or an inorganic peroxide.  Antimony compounds specified are antimony tris (lauryl mercaptide); antimony S, S1, S1-tris (iso-octyl mercaptoacetate); tributyl antiomonite; tris (dichloropropyl) antimonite; trilauryl antimonite; antimony tris (2-ethyl-hexoate); antimony tallate; tributylstibene; tri-n-propylstibene; triamylstibine and antimony trichloride, whilst organic peroxides specified are benzoyl peroxide, lauroyl peroxide, methyl ethyl ketone peroxide, peracetic acid, penbenzoic acid and t-butyl penbenzoate.
Patent GB-865305-A (GB)
Title: Improvements in the dyeing of fibres or foils of cellulose
Inventor: ROHLAND WERNER
Filed: 1959-05-22
Abstract: Aromatic azo dystuff coupling components contain at least once the group:-  <FORM:0865305/IV (b)/1> wherein R represents a hydrogen atom or an alkyl, aralkyl, cycloalkyl, aryl, halogenalkyl or hydroxyalkyl group, A represents an alkylene radical with up to 4 carbon atoms in the chain, which may be branched and/or may contain hydroxyl groups, and X represents a halogen atom, and numerous such coupling components are specified.  Examples describe the preparation of coupling components by (1) condensing 1-amino-8-hydroxynaphthalene-3: 6-disulphonic acid with benzoyl chloride-m-sulphonic acid-b -chlorethylamide, (6) reacting 2-amino-5-hydroxynaphthalene-7-sulphonic acid first with chloroformic acid phenyl ester and then with 1-aminobenzene-4-sulphonic acid-b -chlorethylamide to yield an unsymmetrical urea, and (7) condensing benzene-1-sulphonic acid chloride-4-sulphonic acid-b -chlorethylamide with 1-amino-8-hydroxynaphthalene-3: 6-disulphonic acid.ALSO:Fibres and foils of cellulose (including wood veneers) are dyed or printed by applying a coupling component containing at least one group of the formula:-  <FORM:0865305/IV(c)/1> and/or <FORM:0865305/IV(c)/2> wherein R represents a hydrogen atom or an alkyl, aralkyl, cycloalkyl, aryl, halogenalkyl or hydroxalkyl group, A represents an alkylene radical with up to 4 carbon atoms in the chain, which may be branched and/or may contain hydroxyl groups, and X represents a halogen atom, also applying an acid-binding agent before, together with or after the coupling component, then heating for a short time at 40 DEG -200 DEG C. to fix the coupling component, and finally applying, locally in the case of printing, a diazotized aromatic amine.  Specified acid-binding agents are alkali metal or alkaline earth metal hydroxides, carbonates and bicarbonates.  Numerous coupling and diazo components are specified.  Examples are given.
Patent GB-256031-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C13/00
Filed: 1925-07-08
Abstract: 256,031. Bowden, A. C. July 8, 1925. Extincteurs; portable pressure reservoirs; sprinkling- apparatus, non-automatic.-A chemical fire - extinguisher particularly suitable ior aeroplanes &c., has a valve-controlled fluid outlet from which run two or more delivery pipes, of which at least one is fixed and delivers to a definite point, such as a carburetter, and another is flexible and can be directed to any desired point. The flexible pipe has a controlling cock. The extinguisher shown comprises a main container 5 and an inner reagent container 22 supported by a frame 10 and having an opening closed by a plate 24 soldered over it. The inner vessel is opened by a screwed spindle 13, which passes through packing rings, when a handle 14 is rotated. The lower end of the container 5 has an outlet 35 normally closed by a spring-held valve 36. From the valve chamber pass the fixed and movable pipes 41, 42. In a modification, the vessel 22 is replaced by a pressure bulb adapted to be broken by a hollow piercer when the handle is rotated. The frame 10 is adapted to support either form of inner vessel. The handle in its operation may be arranged positively to open the outlet valve by means of an extension on the handle. The Provisional Specification describes a construction wherein the handle has both rotary and sliding movement and opens the valve 36 by means of a shaped, tubular sleeve engaging a stem on the valve, the sliding movement of the handle and sleeve being controlled by a co-operating pin and slot.
Patent GB-565214-A (GB)
Title: Improvements in or relating to instruments for indicating or recording the speed of,or distance travelled by, an aircraft relative to the surrounding air
IPC: G01P5/16
Filed: 1942-12-09
Abstract: 565,214. Control systems. REILLY, H. L., PRITCHARD, H. C., TWINEY, F. J., BAXTER, I. G., and FOX, W. A. W. Dec. 9, 1942, No. 17552. [Class 38 (iv)] [Also in Groups XIX and XXIX] An apparatus for ascertaining the speed of, or distance travelled by, an aircraft relative to the surrounding air, comprises in association with a variable speed rotary fan and a pitot head or its equivalent, a pressur.e responsive member for controlling the speed of the fan, and upon which the fan and pitot pressures act in opposition, such that the pressures balance one another when the pitot pressure substantially exceeds the fan pressure. The apparatus comprises a fan 1 driven by a motor 2 and having an intake 3 located to give static pressure. The fan outlet 4 is connected to a chamber 5 housing a rigid annulus 6 supported by membranes 7, 8 of rubber-proofed silk or other resilient material. Attached to the annulus 6 is a rigid dome 10 carrying a contact 15 adapted to co-operate with an adjustable contact 14 and arranged in the leads 12, 13 supplying current to the motor 2. The whole of the area on one side of the resilient member is exposed to fan pressure while the other side is exposed in part to static pressure through a passage 9 and in part to pressure derived from a pitot head through a passage 11. By this arrangement the speed of the fan gives a measure of the air speed. To maintain the temperature in the fan the same as that of the external air, the fan is surrounded by a double-walled heat insulating jacket 16 and a current of air is passed from a passage 17 through the space 18 to a duct 19. The shaft of the fan is connected to a speed indicator or to a revolutions counter. By using a position indicator coupled to a compass, the distance measured may be resolved into N-S and E-W components so as to record continuously the direction and distance from a datum point.
Patent GB-576160-A (GB)
Title: Production of polymeric materials
IPC: C08F4/30
Filed: 1942-12-09
Abstract: The process of the parent Specification is modified by using, in place of the water-soluble compound capable of taking up molecular oxygen, a water-soluble thiosulphate.  The aqueous medium may be weakly alkaline or weakly acid.  Air in the reaction vessel may be replaced by nitrogen.
Patent GB-480673-A (GB)
Title: Improvements in or relating to television apparatus
IPC: H04N1/50
Filed: 1936-06-25
Abstract: 480,673. Television. PRIESS, W. H. June 25, 1936, No. 17663. Convention date, July 13, 1935. [Class 40 (iii)] [Also in Group XX] A single mirror 1 is supported and controlled by a torsion rod 6 vibrated electromagnetically at high frequency, and is simultaneously moved in a second direction by a second torsion rod 3 vibrated electromagnetically at low frequency, and both rods and their associated masses vibrate at their natural frequencies. The rods are so supported at their ends 4, 7 that the bulk of inertia reaction is concentrated at those points. The ratio of the moment of inertia of the mass of each system to the elasticity of its rod is constant for all normal variations of temperature. Synchronism is maintained by scanning a bright line 18, 19 along the edges of a scanning mask 17. Specification 461,128 is referred to. The Specification as open to inspection under Sect. 91 comprises also a fixed prism for analyzing the scanning light in a number of colours, each of which is incident on a separate photoelectric cell with its amplifier modulating the output of a generator. A similar prism is used at the receiver. The receiving screen has a translucent granular surface and a mirror backing. The surface comprises a substance which glows under illumination with a persistence such that the period of glow is equal to that of the picture frequency. This subjectmatter does not appear in the Specification as accepted.
Patent GB-300217-A (GB)
Title: Improvements in or relating to parachute-signal or illuminating-cartridges and otherparachute containing devices
IPC: F42B10/56
Filed: 1927-07-04
Abstract: 300,217. McEntegart, J. M., and Imperial Chemical Industries, Ltd. July 4, 1927. Projectiles. - A parachute signalling, illuminating, or like device comprises a split cylinder m, m<1>, Fig. 2, for enclosing the parachute, in combination with a fusible or combustible fastening cord p passing through a mass of combustible material, which when ignited destroys the cord and releases the parachute. As shown in Figs. 1 and 2, the combustible material b is a star composition in a casing a provided at the bottom with a primer e of the kind described in Specification 270,811, and at the top with a loop g for attachment to the parachute j, which is rolled round a cylindrical core i. The split cylinder m, m<1> fits into the top of the casing a and is covered by a lid m formed with grooves or notches o and a tongue p<1> for the cord p. The parachute and star fastened together as in Fig. 2 are intended to be discharged from a cartridge like an ordinary Very light. A similar assemblage may be used in a rocket, or a hand or rifle grenade, or other shell.
Patent GB-519417-A (GB)
Title: Device for measuring mechanical forces by means of an opticoelectric transmitting element
IPC: G01L9/00
Filed: 1938-06-15
Abstract: 519,417. Photo-electric measuring apparatus. BURGESS, A. F. (Maihak Akt.-Ges. H.). June 15, 1938, No. 17791. [Class 40 (iii)] A photo-electric apparatus for measuring mechanical forces comprises a membrane-like reflector 10 which becomes arched when subjected to mechanical forces indicated by the arrows 4, a source of light 8 with an optical system 9 for directing a non-parallel beam of light axially on the reflector whereby the reflected rays are varied in accordance with the arching of the reflector, and means for converting this variation into a variation of surface brightness on a light sensitive device. In the arrangements shown the reflected rays are diverted by an element 11 on to a laterally disposed light sensitive device 12. Specifications 256,611, [Class 40(iii)], and 357,191, are referred to for similar photoelectric devices.
Patent GB-145624-A (GB)
Title: Apparatus for softening the stiffened portions of footwear preparatory to end lasting
IPC: A43D11/14
Filed: 1920-06-29
Abstract: 145,624. Baynard, W. H., and Eager, F. W. Sept. 21, 1917, [Convention date]. Softening and like-treatment of assembled shoes. -An apparatus for softening the stiffened parts of footwear preparatory to lasting comprises a casing having openings 16 each receiving the toe portion of an assembled shoe, a steam heating-coil 21, a vapour-supply pipe 41, a stack 19 for conveying away vapour and heated air, and a heel heater and softener 60 for each heel. Between each toe and the upper pipes of the coil 21 is a shield 39. The vapour pipe 41 has a small port 44 for each shoe, opening into a chamber 31 from which vapour passes by openings 36, 38 and by tortuous, passages 34, Fig. 5, to the toe portion of the shoe. The heel-softener 60 fits within the depending edge of the counter-stiffener, and is provided. with side. apertures 62 for the escape of vapour. A telescopic pipe joint 67 allows adjustment for different lengths of shoes. The apparatus stands on a tray 10 with a slope to the rear' where a drip pipe for condensed vapour is provided.
Patent GB-1469496-A (GB)
Title: Razor blade assembly
IPC: B26B21/14
Filed: 1975-04-29
Abstract: 1469496 Razor blade units GILLETTE CO 29 April 1975 [23 July 1974] 17798/75 Heading B4B A razor blade assembly comprises a razor blade unit 2 having a rigid member 6 to which at least one blade is screwed and provided with a guard surface 24, the unit being mounted on connector member 4 for movement relative thereto which member is formed with a channel 54 for engagement with a handle. The connector member is formed with two arcuate slots 76, 78 for engagement with rocket portions 28, 30 on the blade unit 2. The connector member is provided with fingers 72, 74 which co-operate with a post 40 on the unit and act as leaf springs to normally bias the unit to a neutral position.
Patent GB-1459076-A (GB)
Title: Method of preparing size
IPC: C09J101/26
Filed: 1975-04-29
Abstract: 1459076 Reacting carboxymethyl cellulose SCA DEVELOPMENT AB 29 April 1975 [17 May 1974] 17865/75 Heading C3A Carboxymethyl cellulose is mixed with urea and optionally with starch, and then hydrogen peroxide is added together with ions of a metal which has more than one oxidation state. The mixture is maintained at a temperature above room temperature. The metal ions must be in the lowest oxidation state the metal can assume; during the reaction the metal changes its valency by at least one unit. The preferred ions are ferrous. The resulting product is used as a fusible size for paper.
Patent GB-686584-A (GB)
Title: Stalk shredder
IPC: A01D34/835
Filed: 1951-07-17
Abstract: 686,584. Breaking up vegetation. HORN MANUFACTURING CO. July 27, 1951 [Aug. 18, 1950], No. 17886/51. Classes 6(i) .and 6(iii) A machine for breaking up standing corn stalks comprises a wheeled frame 11 supporting horizontal rotary shafts 24, 25 fitted with flails 28, 32, the frame being supported at the front on a draught-tongue 10 attached to a tractor and at the rear on a pair of wheels 42 pivoted on bell-cranks 43 on each side of the frame 11, the bellcranks being linked to the tongue 10 so that the frame can be raised and lowered while remaining horizontal. The shaft 25 is driven from the tractor power-take-off and drives the lateral shafts 24 through belt-gearing 36. The flails 28, 32 on adjacent shafts are staggered and are covered by a casing 38 forming part of the frame 11. Each bell-crank 43 is pivoted at 46 to the frame 11 and one limb 48 is connected by a link 53 to a lever 56 secured to the draught-tongue. Springs 60 interconnect the parts 56 and 48. The frame is lowered, against the action of the springs 60, by a hand-lever 68 connected to the casing 38 by a link 73. The link 73 includes a spring- loaded connection 78 which permits the frame to rise on encountering obstructions.
Patent GB-613180-A (GB)
Title: Thermosetting compositions
IPC: C08L97/00
Filed: 1946-06-14
Abstract: Thermosetting compositions are prepared by blending a mono-olefin-carbon monoxide interpolymer, which has been modified by treatment with a basic alkali metal or alkaline earth metal compound to increase its unsaturation to a value corresponding to an oxygen loss of at least 5 per cent, as described in Specifications 603,481 and 603,482, with formaldehyde or a substance yielding it, e.g. paraformaldehyde, trioxymethylene, 1,3,5 - trioxane, hexamethylene-tetramine and methylolureas, sufficient to provide 0.5 to 50 per cent free formaldehyde based on the weight of the interpolymer.  Blending may be accomplished by mechanical mixing or using a liquid medium.  Alternatively, the components may be combined chemically, e.g. by heating in solution, to form the methylol derivative.  The thermosetting reaction may be accelerated by acid catalysts, e.g. maleic and phthalic acids, ammonium chloride or urea nitrate.  The compositions may include water; materials which react with formaldehyde, e.g. melamine and dicyandiamide; mould lubricants, e.g. zinc and aluminium stearates; fillers, e.g. wood flour, mica, silica, asbestos, macerated fabrics, hemp fibres, clay and carborundum; pigments, e.g. carbon black and titanium dioxide; dyes; polyvinyl alcohol, urea- and phenol-formaldehyde resins; solvents, e.g. chloroform and 1,2-dichloro-ethane.  They may be used as adhesives for metal and wood, as bonding agents for abrasives, as wire coatings and in finishing and laminating fabrics.  Example (IX) describes the preparation and use of an interpolymer of ethylene, carbon monoxide and diethyl maleate.
Patent GB-105046-A (GB)
Title: Improvements in or relating to Electric Pocket Lamps.
Inventor: PLETSCHER OTTO
IPC: F21L13/08
Filed: 1916-12-13
Abstract: 105,046. Pletscher, O. Nov. 18, 1916, [Convention date]. Magneto-electric machines; magnetos, driving. -In a portable lamp, a magneto is arranged with its axis parallel to the length of the casing, and the field magnet 11, which acts as a fly-wheel, is rotated through bevel-gear by a lever 31 movable to and from the casing about a pivot 32 at rightangles to the axis of the magneto. Preferably, the casing has a unilateral enlargement 19 at its rear end, opposite to the lever, to accommodate multi. plying-gear and to facilitate holding the otherwise cylindrical casing by the fingers while the thumb operates the lever 31. In the arrangement shown, a long stationary shuttle armature 2 is provided with end plates 4, from which project studs 5, 6, one of which is hollow for the passage of conductors to terminals 17, 18 on a partition 7<a>. The square end of this stud is let into the partition 7<a>. A bracket 7 on the casing holds the other stud 5. The field magnet consists of a number of pairs of magnets 11, each pair encircling the armature except for small gaps 13, which are bridged by two long pole-plates 14. End caps 8, 8a of the magnet rotate on the studs 5, 6, the rear cap being attached to a pinion 23 connected by the multiplying-gearing 24, 26 to a wheel 27. A pawl 35 on the face of this wheel bears on a ratchet-wheel 28 attached to a bevel pinion 29 meshing with a bevelsector 30 on the lever 31. An eccentric stud 34 on the casing retains the lever 31 against the action of a coil spring around its pivot 32, when the lamp is not in use. A ring 36 swivelling in the lever is folded against it in either of two positions, to facilitate manipulation by thumbs of different lengths.
Patent GB-134335-A (GB)
Title: Improvements in Means for Economising Fuel in Domestic Grates.
Inventor: CHESSHIRE JOHN HENRY
IPC: F24B1/19
Filed: 1918-11-02
Abstract: 134,335. Chesshire, J. H. Nov. 2, 1918. Fuel - economizers; grates. - Means to restrict the area of a grate and economize fuel consist of a plate d which forms a faLse back and sides, in combination with a plane damper a placed on the grate bars. The plate d may be of semicircular, semi-hexagonal, or similar section; it is higher at the back than at the front and has airsupply slots g in the upper portion of the back. According to the Provisional Specification, the lower portion of the back may be recessed and the damper pushed under it; and more than one damper may be employed.
Patent GB-292541-A (GB)
Title: Improvements in and relating to refrigerator cabinets
IPC: F25D23/06
Filed: 1928-06-21
Abstract: 292,541. British Thomson-Houston Co., Ltd., (Assignees of Randolph, C. P.). June 21, 1927, [Convention date]. Nonconducting coverings for heat. -A refrigerator comprises inner and outer metal casings connected by metal alloy frames 14, 15 of low heat conductivity which form respectively the support for the refrigerating mechanism and the lining for the door 25. The frames are welded &c. to the casings and the space, between the casings is tightly packed with insulating material such as balsa wool. The refrigerator may be strengthened by angles welded to the exterior and the interior of the inner and outer casings respectively. The door is provided with packing consistng of loose hemp threads 32<b>, Fig. 4, enclosed in a waterproof cover 32a and held in a metal clip 34. Specifications 18676/11, [Class 82, Metals and alloys], 26940/07 nnd 288,576 are referred to.
Patent GB-819515-A (GB)
Title: A joystick handle
IPC: B64C13/04
Filed: 1957-06-07
Abstract: 819,515. Aircraft hand controls. SOC. D'APPLICATIONS DES MACHINES MOTRICES and ROHACS, E. June 7, 1957, No. 18148/57. Class 4. [Also in Group XXXVII] An aircraft control member comprises a handle shaped to conform to the hand of a pilot grapsing the handle, and two switches controlling a camera and a gun and operable by a trigger mounted on the handle within the range of mobility of the pilot's forefinger. Fig. 1 shows a handle grasped from the right and recessed at 4, 5, 6. 7, to accommodate the four fingers. The trigger 26 is pivoted to the handle, and is movable from the operating position, shown in full lines, to a partially recessed inoperative position shown in chain lines. When pulled by the forefinger, a push-button switch 23 is operated to operate the camera, and further movement of the trigger is resisted by a restraint device in switch 23, Fig. 4 (not shown). The pushbutton switch 22 controlling the gun is then in a " ready " position. Greater pressure on the trigger overcomes the restraint and operates switch 22. The pilot's thumb rests on a lever 8 which can be rocked to operate switches controlling aircraft pitch control means. A cover plate 11 over a recess in the handle can be lifted by the thumb, such .lifting operating a switch locking a gyroscopic aiming mechanism and giving the thumb access to a push-button controlling the release of bombs or rockets. A further button 28 operable by the second or third finger controls a radio receiver, and a button 29 operable by the little finger through a lever 30 locks, the front wheel of the landing gear. Specification 729,266 [Group XXXVII] is referred to.